Where does “helmet” come from?

helmet (Old French) comes from Old French helme, from Medieval Latin helmus, from Frankish helm, from Proto-Germanic helmaz, from Proto-Germanic halmaz, from Proto-Indo-European ḱolh₂mos, from Proto-Indo-European ḱelh₂- — to pierce, strike; to stick; prick; stab.

Ancestry of “helmet”, step by step

helmet traces back through two separate lines of ancestry.

via Old French helme

StepLanguageWordMeaning
1Old Frenchhelmehelmet
2Medieval Latinhelmushelmet
3Frankishhelmhelmet
4Proto-Germanichelmazhelmet
5Proto-Germanichalmazhalm; stem; stalk; straw; hay
6Proto-Indo-Europeanḱolh₂mosstalk
7Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab

via Proto-Germanic *helm

StepLanguageWordMeaning
1Proto-Germanic*helm

Words derived from “helmet

Every word from Proto-Indo-European ḱelh₂-Every word from Proto-Indo-European ḱolh₂mosEvery word from Proto-Germanic halmaz